Welcome to the North American Subaru Impreza Owners Club Monday July 6, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Service & Maintenance

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 02-03-2005, 10:32 PM   #1
BruceC
Scooby Newbie
 
Member#: 4962
Join Date: Mar 2001
Location: The suburban wastelands of Det
Vehicle:
2002 WRX Wagon
Sedona Red Pearl

Question Stumbling/hesitating on acceleration

Before I bring my '02 WRX to the shop, anything simple and cheap I can look at/replace to try to fix the problem? (i.e., spark plug wires, EGR valves, fuel filter, stuff like that).

Problem occurs regardless of how aggressive the acceleration or in what gear. Seems to get worse as engine warms up.

BTW, I just read the fuel filter thread (a likely suspect) -- but, dumb question, where's the filter located?

I have 36K miles on it.

I don't have an OBD2 scanner but maybe I should get one.

Geez, been awhile since I've been here!
* Registered users of the site do not see these ads.

Last edited by BruceC; 02-03-2005 at 10:38 PM.
BruceC is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 02-04-2005, 10:27 AM   #2
OneOBS
Scooby Specialist
 
Member#: 63076
Join Date: May 2004
Location: Caulifornia
Vehicle:
2004 Outback Sport
Red!

Default

It could be a bad tank of gas, too.
OneOBS is offline   Reply With Quote
Old 02-04-2005, 11:55 AM   #3
BruceC
Scooby Newbie
 
Member#: 4962
Join Date: Mar 2001
Location: The suburban wastelands of Det
Vehicle:
2002 WRX Wagon
Sedona Red Pearl

Default

Quote:
Originally Posted by OneOBS
It could be a bad tank of gas, too.
Considered that, and I might run this tank dry to see if it persists after the next fill-up. But it occurred briefly once before about two weeks ago (only lasted a day, and that was a few of tanks of gas ago) and has now reappeared and persisted over several days, starting before the most recent fill-up.

The first time it happened I chalked it up to a wicked cold spell we were having, but now the weather is normal to slightly warmer than average.

Naturally, I'm only using premium. And I use various gas stations.

BTW, if I'm seeing the diagram on subaruparts.com right, the filter is on or near the gas tank? Doesn't look very accessable if so.
BruceC is offline   Reply With Quote
Old 02-04-2005, 12:54 PM   #4
soldmyboxster
Scooby Specialist
 
Member#: 65520
Join Date: Jul 2004
Chapter/Region: International
Default

If I had to guess, I'd say it was some kind of vacuum leak or low fuel pressure.
soldmyboxster is offline   Reply With Quote
Old 02-04-2005, 01:25 PM   #5
OneOBS
Scooby Specialist
 
Member#: 63076
Join Date: May 2004
Location: Caulifornia
Vehicle:
2004 Outback Sport
Red!

Default

I had a lot of water in my OBS when I bought it. It took about four tanks of treated (dry gas or eq) to get it all out.
OneOBS is offline   Reply With Quote
Old 02-04-2005, 01:39 PM   #6
BruceC
Scooby Newbie
 
Member#: 4962
Join Date: Mar 2001
Location: The suburban wastelands of Det
Vehicle:
2002 WRX Wagon
Sedona Red Pearl

Default

Quote:
Originally Posted by soldmyboxster
If I had to guess, I'd say it was some kind of vacuum leak or low fuel pressure.
Vacuum leak...hmm...usually pretty easy to find and fix. Sounds reasonable too. Thanks! And stay tuned...

[EDIT]: Nope, couldn't find a vacuum leak.

Last edited by BruceC; 02-04-2005 at 06:43 PM. Reason: Update
BruceC is offline   Reply With Quote
Old 02-07-2005, 08:12 PM   #7
brenden3010
Scooby Newbie
 
Member#: 79461
Join Date: Jan 2005
Location: Houston
Vehicle:
04 STi
White

Default

Its turbo lag Seriously though, when my cars recirculation hose came off, it lagged horribly, and felt like stalling, and under boost, its like the boost came on more instantaniously than gradually... not the instant power feeling you want though.
brenden3010 is offline   Reply With Quote
Old 02-08-2005, 07:18 PM   #8
Hoss
Scooby Newbie
 
Member#: 26055
Join Date: Oct 2002
Chapter/Region: SCIC
Location: San Diego
Vehicle:
02 WRX
WRB

Default

Quote:
Originally Posted by BruceC

BTW, I just read the fuel filter thread (a likely suspect) -- but, dumb question, where's the filter located?
see this thread
Hoss is offline   Reply With Quote
Old 02-08-2005, 10:59 PM   #9
Robin2
NASIOC Supporter
 
Member#: 390
Join Date: Oct 1999
Chapter/Region: E. Canada
Location: Ottawa, Ontario, Canada
Vehicle:
2011 WRX sedan
Plasma Blue

Default

what maintenance has been done to the car???
Robin2 is offline   Reply With Quote
Old 02-08-2005, 11:24 PM   #10
RexyGirl
Scooby Specialist
 
Member#: 63616
Join Date: Jun 2004
Chapter/Region: South East
Location: Mastro Subaru, Sanford FL
Vehicle:
1996 Volvo 850 Turbo
with mods :)

Default

Please provide more information....is the CEL on? How many miles are on the car? Does the hesitation go away after driving? Did you just replace your air filter? Other than oil changes, what else has been done to the car? Modifications?
RexyGirl is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
hesitation on acceleration subschutjer Newbies & FAQs 19 10-09-2008 08:38 AM
Bog/Hesitation on acceleration from stop, 2005 RS w/ injen CAI kevinmwolf Normally Aspirated Powertrain 9 01-03-2008 01:27 AM
Hesitation on acceleration AphexDouble Service & Maintenance 7 01-29-2007 12:35 AM
Help! New Hesitation on Acceleration Evil Dr. Scoob Normally Aspirated Powertrain 3 01-15-2003 02:50 AM
Hesitation on acceleration SCOOBER Normally Aspirated Powertrain 14 12-16-2000 10:45 AM


All times are GMT -4. The time now is 07:31 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.